Companies hiring security engineers in Washington DC
Open security jobs in Washington DC, counted October 28, 2026 from companies' own job boards.
- 1,134open postings
- 384new in 30 days
- 303companies hiring
Most open security jobs in Washington DC
| Company | Open postings | New (30 days) |
|---|---|---|
| Booz Allen Hamilton | 83 | 33 |
| ProSidian Consulting | 39 | 0 |
| Nightwing | 34 | 1 |
| Peraton | 34 | 10 |
| MITRE | 29 | 26 |
| Leidos | 26 | 10 |
| Accenture Federal Services | 25 | 7 |
| Contact Government Services | 20 | 0 |
| Anthropic | 19 | 1 |
| Steampunk | 19 | 12 |
| AMERICAN SYSTEMS | 17 | 3 |
| cFocus Software | 16 | 0 |
| SYSTEM HIGH | 13 | 9 |
| Agile Defense | 12 | 1 |
| Dell | 12 | 4 |
| Guidehouse | 12 | 5 |
| Intrepidgs | 12 | 9 |
| Mtsi Va | 12 | 3 |
| SpaceX | 11 | 4 |
| ManTech | 10 | 10 |
| MetroStar | 10 | 3 |
| Capital One | 9 | 5 |
| Charles River Associates | 9 | 0 |
| Comtech | 9 | 0 |
| GDIT | 9 | 5 |
Most new security jobs in Washington DC, last 30 days
| Company | Open postings | New (30 days) |
|---|---|---|
| Booz Allen Hamilton | 83 | 33 |
| MITRE | 29 | 26 |
| Steampunk | 19 | 12 |
| Leidos | 26 | 10 |
| ManTech | 10 | 10 |
| Peraton | 34 | 10 |
| Intrepidgs | 12 | 9 |
| SYSTEM HIGH | 13 | 9 |
| Accenture Federal Services | 25 | 7 |
| Gotyto | 8 | 7 |
| Bank of America | 6 | 6 |
| Hewlett Packard Enterprise | 9 | 6 |
| Xcelerate Solutions | 6 | 6 |
| BAE Systems | 5 | 5 |
| Capital One | 9 | 5 |
| GDIT | 9 | 5 |
| 6 | 5 | |
| Guidehouse | 12 | 5 |
| LMI | 5 | 5 |
| Marriott | 6 | 5 |
| Dell | 12 | 4 |
| FINRA | 6 | 4 |
| FTI Consulting | 5 | 4 |
| KPMG | 4 | 4 |
| Rand | 6 | 4 |
Other work in Washington DC
What they pay
Posted salary ranges for this work: Security engineer salaries in Washington DC. Or look up any job and city with the salary lookup.
What these numbers are
Counts are open US job postings on companies' own job boards, as DonutApply read them that day; a posting closed on its board is not counted. A posting is new when it says it was posted in the last 30 days, or, when it says no day, when DonutApply first saw it in that time. The kind of work is read from the job title.
Questions
Which companies are hiring security engineers in Washington DC?
As of October 28, 2026, Booz Allen Hamilton (83 open postings), ProSidian Consulting (39 open postings), Nightwing (34 open postings), Peraton (34 open postings), MITRE (29 open postings) have the most open security postings in Washington DC.
How many security jobs are open in Washington DC?
1,134 open postings at 303 companies, 384 of them posted in the last 30 days, counted October 28, 2026.
Where do these numbers come from?
From companies' own job boards, which DonutApply reads every day. A posting that closes on its board drops out of the count, and job boards that repost other sites' listings are not counted.
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